Drive device and method for limiting rotational speed

Abstract

A drive device, comprising: a superimposed transmission (17); a main drive (2) connected to an input shaft (14) of the superimposed transmission; one or more auxiliary drives (3.1, 3.2); and the output shaft (15) of the superimposed transmission device, which can be connected with the working machine (1), wherein the superimposed transmission device (17) comprises a ring gear (4), a sun gear (7), a planet carrier (10) A planetary transmission (18) with a plurality of planetary gears (5), and wherein the input shaft (14) is connected with the ring gear (4), the output shaft (15) is connected with the sun gear (7), and one or more The auxiliary drives (3.1, 3.2) are connected to the planet carrier (10) via a first gear stage (6.1, 6.1a, 6.1b, 6.2, 6.2a, 6.2b) with a constant transmission ratio (i_SG1), wherein in the auxiliary There is an additional drive connection with constant transmission ratios (i_SG1, i_SG2, i_SG3) between the drive (3.1, 3.2) and the ring gear (4) or pinion (4.1) on the input shaft, and wherein in said additional drive A switchable clutch (11.1, 11.2) is present in the connection, which can activate or interrupt the additional transmission connection by means of the first transmission stage (6.1, 6.1a, in the event of interruption by means of the clutch (11.1, 11.2) , 6.1b, 6.2, 6.2a, 6.2b) keep the connection between the auxiliary drive (3.1, 3.2) and the planet carrier (10) active.

Description

technical field [0001] The invention relates to a driving device, which comprises: a superposition transmission device a main drive machine connected to the input shaft of the superposition transmission; one or more auxiliary drives; and an output shaft which may be connected to the working machine, wherein the superposition transmission comprises a ring gear, a sun gear, A planetary transmission of a planet carrier and a plurality of planet gears, and wherein the input shaft is connected to the ring gear, the output shaft is connected to the sun gear, and one or more auxiliary drives are connected to the planet carrier via a transmission stage. [0002] Furthermore, the invention relates to a method for limiting the rotational speed of a main or auxiliary drive in the event of a failure or rapid shutdown of such a drive. Background technique [0003] In a superposition transmission, the two shafts of the planetary transmission are usually driven by mutually independent dr...

AI Technical Summary

Problems solved by technology

This cannot be prevented by a clutch on the auxiliary drive, although this would even allow the auxiliary drive to be protected by disengaging, but then the speed of the planet carrier still rises rapidly

It is proposed in the prior art to prevent this by means of a brake on the planet carrier, however, additional components for the coupling are still required

This increases the cost of the drive equipment and requires more space, two serious disadvantages

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